Storage battery.



H. w. KA DELL.

STORAGE BATTERY.

APPLICATION FILED 'MAY 7. ISI?.

Patented Aug. 27, 1918.

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WITNESSES ATTO R N EY HAROLD W. KA DELL, 0F EDGE-LEY, NORTH DAKOTA.

STORAGE BATTERY.

Specification of Letters Patent.

yPatented Ang. 27, 1918.

Application ined 'may 7, 1917. serial No. 166,927.

To all ywhom vz5 'may concern:

Be it linown that I, H.\no1.n XY. KA DELL, a citizen of the United -States, residing at tldgeley, in the county ot' La Moure and State of North Dakota, ,have invented certain new and useful Improvements in Storage Batteries, of which the following is a specification.

Myinvention relates to improvements in storage cells, and consists in the construc vide a storage' cell wherein the weight vis greatly decreased ,bythe use ot' carbon in constructing the positive and negative plates, the nature of the carbon being such that buckling ot' theA plates and the constant obviation oi local action between the plates being precluded. e

Another object of the invention is to provide a storage-.cell having carbon positive `plates of the Faure type upon which the active clement is smeared in any suitable manner, the possibilit- V of local action between the active element and the carbon plates being obviated because of the negative liability ot chemical action on the carbon by `ordinary electrolytes.

Another object of the invention is to provide a storage cell having- .positive and negativo plates formed of carbon, hard rubber grids or spacing plates being provided ltor holding the positive and negative plates apart, so that excessive handling of the cell will not destroy the-proper relationship of the. plates.

@ther` objects and advantages will appear from the. following specilication, reference being had to the. accompanying-` drawings, in which .Figure l is a side elevation of a storage cell illustrating the. featnresrof my invention, parts of the jar being broken avvay,

Fic. t is a cross section throughgthmjar ;;sheaf1xig the plates in end elevation,

Fig; 3 is a detailcross section of one of the positive plates, and

Fig. si is a detail plan view showingthe correlation of the positive to the negative plates.

In carryintnv out my invention, I provide a jar l which may bemade ot' any suitable 1naterial.s1ah as is used in making storage battery jars and may consist of hard rubber, glass, or eelluloid; A cover 2 is placed npon the jar l. The cover 2 may be hermetically sealed so that the electrolyte in the jar l will' not be spilled in the handling of the cell.

A vent Il which consists ot' the perforated cap shown in Figs. l and :2 is screwed into an opening in the cover :2. The vent 3 permits the escape ot' gas which may be formed .by the action ot' the elements of the storage cell.

plnri'dity et' positive plates consisting ot' carbon sheets l: are located in the jar l. The positive plates EL arerecessed as at 5 as shown in Fig.' 3, so that when an activel element indicated G is smeared upon the. opposite surfaces ot' the positive plates, it will be forced into the recesses and held therein. i

A connectingboss 7 is formed on one of the upper corners ot' each ot' the positive plates 4f. The boss T of each positive plate -l extends'oti' to one side ot' the plate so that when the end ot' the boss abuts the next plate, a space is lett between the positive plate as `clearly shown in Fig. 2.

A borev S is `formed in each ot' the. bosses 'i'. so/that. a terminal bolt 9 may be passed through the bores of all of the bosses and secure. them together. A washer l0 spaces the boss 7 of the end positive plate i from the adjacent side of the jar l. A lock nut li binds the terminal bolt 9 Iirmly in position an'd also ,serves to provide a better electrical connection for one of the current wires when clamped in position by the binding nut l2. f

A plu 'ality of negative plates 13, formed ot carbon, are located in the jar land the negative plates 13 occupy the spaces between the positive platesi as shown in Fig. 2. The negative plates i3 are shaped similarly to the positive plates 4 in that they are provided wth bosses le which also extend 0E to one side so that when the negatyepetes are tit) assembled, they will be spaced equi-distantly apart so that the proper relationship of the positive and negative plates may be preserved. Y

A terminal bolt 15 passes through bores in the bosses 1st which are similarly located to thel bores 8 in the bosses T inthe positive plates.

Hard rubber spacing plates or strips 16 aie fitted over the edges of the positive andA course-of manufacture, and the recesses 5' may beof any shape that will effectively hold the active element -6 in place on the plates. The active element iii this instance consists of a paste made of red lead minium and sulfuric acid. The paste is smeared in all of the recesses of the positive plates 4.

All of the plates of the cell are assembled in the manner previously'described, the strips 16 serving to hold each plate in its proper place. A common occurrence in *using storage cells having lead plates, is to find that the plates become buckled when the cell is discharged too rapidly or when proper precautions to recharge the cell before it is too fully run-down, are not taken. The inherentnature ofthe carbon plates of my storage cell is such thatthey will not buckle, the danger of buckling being further guarded against by the holding strips 16.

The negative plates 13 are also formed with recessed surfaces similarly to the surfaces'of'the positive plates l. In the instance of the negative plates however, litharge or the yellow oxid of leadvwhich is irst formed into a paste with sulfuric acid is smeared into the recesses. The positive and negative plates are 4rst formed and placed in the jar. Vhen an electrolytel of dilute sulfuric acid is poured into the jar around the positive and negative plates, the chemical reactions between the yellow oxid and the ied oxid of lead on the negative and positive plates respectively, causes a flow o f current.

IVhile the construction and arrangement of the parts as illustrated in the drawing lthe combination of a jar, a plurality of positive plates positioned within the jar and comprising elongated comparatively thick bodies, said plates having bosses formed thereon adjacent one/end of each plate, said bosses projecting for a considerable distance beyond their respective plates in one direction, although terminating evenly with the side surfaces of the plates in the opposite direction, means passing through said bosses for binding the Same in enga-gement with each other for supporting the positive plates in parallel spaced relation, whereby the plates at their opposite ends will be unobstructed` negative plates comprising elongated thickened bodies interposed between said positive plates and extending below the bosses of the positive plates, said negative plates having bosses formed thereabove, the boss of each negative plate extending for a considerable distance beyond the one side surfacel of the plate although terminating evenly with the other side surface thereof and being positioned within the jar adjacent the unobstructed end portions of the positive plates, whereby the bosses of the negative plate will extend above the u nobstructed ends of the positive plates, and securing means passing through the bosses of the negative plates for binding lengagement with each other, whereby said negative plates will be properly spaced from the positive plates.

In testimony whereof I affix my signature in presence of two witnesses.

HAROLD IV. KA DELL. 

